Urinal Screen Assembly

ABSTRACT

A urinal screen assembly is provided. The urinal screen assembly includes a base having opposing major surfaces, a plurality of apertures extending therebetween and a rim. The base is configured to seat in a contoured orientation against contours on a surface of a urinal bowl. The base includes one or more deodorizing and cleaning agents. A retention structure extends from one of the major surfaces of the base. A block is positioned within the retention structure. The block includes one or more deodorizing and cleaning agents configured to deodorize and clean the urinal bowl. The deodorizing and cleaning agents in the base and the deodorizing and cleaning agents in the block are configured to combine to form a deodorizing and cleaning zone that extends radially beyond the edges of the block.

RELATED APPLICATIONS

This application is a continuation patent application of pending U.S.Patent Application No. 61/515,427, filed Aug. 5, 2011, the disclosure ofwhich is incorporated herein by reference in its entirety.

BACKGROUND

Urinals can include urinal screens configured for several purposes.First, urinal screens can receive, trap and direct an incoming urinestream into the waste drain of a urinal. Urinal screens can also preventdebris from entering and clogging the waste drain of a urinal. Further,urinal screens can hold blocks of deodorant containing material tofreshen and sanitize the urinal between uses. Finally, urinal screenscan hide collections of urine that have not drained from the urinalbowl.

It would be advantageous if urinal screens could be improved.

SUMMARY OF THE INVENTION

According to the invention there is provided a urinal screen assembly.The urinal screen assembly includes a base having opposing majorsurfaces, a plurality of apertures extending therebetween and a rim. Thebase is configured to seat in a contoured orientation against contourson a surface of a urinal bowl. The base includes one or more deodorizingand cleaning agents. A retention structure extends from one of the majorsurfaces of the base. A block is positioned within the retentionstructure. The block includes one or more deodorizing and cleaningagents configured to deodorize and clean the urinal bowl. Thedeodorizing and cleaning agents in the base and the deodorizing andcleaning agents in the block are configured to combine to form adeodorizing and cleaning zone that extends radially beyond the edges ofthe block.

According to the invention there is also provided a method of assemblinga urinal screen assembly. The method includes the steps of providing abase having opposing major surfaces, a plurality of apertures extendingtherebetween and a rim, the base configured to seat in a contouredorientation against contours on a surface of a urinal bowl, wherein thebase includes one or more deodorizing and cleaning agents, extending aretention structure from one of the major surfaces of the base andpositioning a block within the retention structure, wherein the blockincludes one or more deodorizing and cleaning agents configured todeodorize and clean the urinal bowl. The deodorizing and cleaning agentsin the base and the deodorizing and cleaning agents in the blockconfigured to combine to form a deodorizing and cleaning zone thatextends radially beyond the edges of the block.

According to the invention there is also provided a urinal. The urinalincludes a urinal bowl configured to receive an incoming stream ofurine. The urinal bowl has a plurality of contours. A urinal screenassembly is positioned within the urinal bowl and is configured to seatin a contoured orientation against the plurality of contours of theurinal bowl. The urinal screen assembly has a base having opposing majorsurfaces, a plurality of apertures extending therebetween and a rim. Thebase has one or more deodorizing and cleaning agents. A retentionstructure extends from one of the major surfaces of the base. A block ispositioned within the retention structure. The block includes one ormore deodorizing and cleaning agents configured to deodorize and cleanthe urinal bowl. The deodorizing and cleaning agents in the base and thedeodorizing and cleaning agents in the block are configured to combineto form a deodorizing and cleaning zone that extends radially beyond theedges of the block.

Various objects and advantages of this invention will become apparent tothose skilled in the art from the following detailed description of theinvention, when read in light of the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1A is an exploded perspective view of a first embodiment of animproved urinal screen assembly.

FIG. 1B is an assembled perspective view of the improved urinal screenassembly of FIG. 1A.

FIG. 2 is a perspective view of the improved urinal screen assembly ofFIG. 1B shown installed in a urinal.

FIG. 3 is an assembled perspective view of the improved urinal screenassembly of FIG. 1B shown with an alternate retention structure.

FIG. 4 is an exploded perspective view of another embodiment of animproved urinal screen assembly.

FIG. 5 is an assembled perspective view of the improved urinal screenassembly of FIG. 4.

FIG. 6 is a cross-sectional view, in elevation, of a portion of theassembled improved urinal screen of FIG. 5.

FIG. 7 is an exploded perspective view of another embodiment of animproved urinal screen assembly.

FIG. 8 is an assembled perspective view of the improved urinal screenassembly of FIG. 7.

FIG. 9 is a bottom view of the assembled improved urinal screen of FIG.7.

FIG. 10 is a perspective view of the improved urinal screen assembly ofFIG. 8 shown installed in a urinal.

FIG. 11 is a perspective view of the improved urinal screen assembly ofFIG. 8 shown installed in a urinal in an inverse position.

FIG. 12 is a perspective view of an alternate support member for theimproved urinal screen assembly of FIG. 7.

FIG. 13 is a perspective view of an alternate base incorporating asupport member.

FIG. 14 is a perspective view of another alternate base incorporating asupport member.

FIG. 15 is a side view, in elevation, of an alternate post for theimproved urinal screen assembly of FIG. 7.

FIG. 16 is a perspective view of another embodiment of an improvedurinal screen assembly.

FIG. 17 is a perspective view of an alternate retention structure for animproved urinal screen assembly.

FIG. 18 is a perspective view of another embodiment of a retentionstructure from an improved urinal screen assembly.

DETAILED DESCRIPTION OF THE INVENTION

The present invention will now be described with occasional reference tothe specific embodiments of the invention. This invention may, however,be embodied in different forms and should not be construed as limited tothe embodiments set forth herein. Rather, these embodiments are providedso that this disclosure will be thorough and complete, and will fullyconvey the scope of the invention to those skilled in the art.

Unless otherwise defined, all technical and scientific terms used hereinhave the same meaning as commonly understood by one of ordinary skill inthe art to which this invention belongs. The terminology used in thedescription of the invention herein is for describing particularembodiments only and is not intended to be limiting of the invention. Asused in the description of the invention and the appended claims, thesingular forms “a,” “an,” and “the” are intended to include the pluralforms as well, unless the context clearly indicates otherwise.

Unless otherwise indicated, all numbers expressing quantities ofdimensions such as length, width, height, and so forth as used in thespecification and claims are to be understood as being modified in allinstances by the term “about.” Accordingly, unless otherwise indicated,the numerical properties set forth in the specification and claims areapproximations that may vary depending on the desired properties soughtto be obtained in embodiments of the present invention. Notwithstandingthat the numerical ranges and parameters setting forth the broad scopeof the invention are approximations, the numerical values set forth inthe specific examples are reported as precisely as possible. Anynumerical values, however, inherently contain certain errors necessarilyresulting from error found in their respective measurements.

The description and figures disclose an improved urinal screen assembly,combining a scented base with a scented block, for positioning within aurinal bowl of a urinal. Generally, the improved urinal screen assemblyis configured to seat in a generally contoured orientation against thevarious contours of the urinal bowl, thereby facilitating the functionsof receiving, trapping and directing an incoming urine stream into thewaste drain of a urinal, preventing debris from entering and cloggingthe waste drain of a urinal, providing deodorizing materials to freshenand sanitize the urinal and hiding collections of urine that have notdrained from the urinal bowl. The term “urinal,” as used herein, isdefined to mean a receptacle used by males for urinating. The term“urinal bowl” as used herein, is defined to mean that portion of aurinal to which urine is generally directed. The term “urinal screen”,as used herein, is defined to mean a structure positioned within theurinal bowl and through which urine passes.

Referring now to FIG. 1A (exploded perspective view) and FIG. 1B(assembled view), an improved urinal screen assembly (hereafter “screenassembly”) is illustrated generally at 10. The screen assembly 10includes a base 12, a retention structure 14 extending from the base 12and a block 16.

Referring again to FIGS. 1A and 1B, the base 12 is configured as aforaminous structure, thereby allowing fluids, such as urine and water,to pass through the screen assembly 10 and into a waste drain (notshown) connected to a urinal bowl (not shown). The base 12 includes aplurality of spaced apart apertures 20. In some embodiments, theapertures 20 are arranged in rows and columns. In other embodiments, theapertures 20 can be arranged in any desired orientation, includingrandom patterns. The apertures 20 have a diameter D1. In the illustratedembodiment, the diameter D1 is in a range of from about 0.20 inches toabout 0.40 inches. However, in other embodiments, the diameter D1 can beless than about 0.20 inches or more than about 0.40 inches. While theapertures 20 illustrated in FIGS. 1A and 1B have a generally circularcross-sectional shape, it should be appreciated that in otherembodiments, the apertures 20 can have any desired cross-sectionalshape. Additionally, while each of the apertures 20 illustrated in FIGS.1A and 1B are shown to have the same diameter, it should be appreciatedthat in other embodiments, the apertures 20 can have differentdiameters.

Referring again to FIG. 1A, the base 12 has a rim 22. The term “rim”, asused herein, is defined to mean an outer edge of the base 12.Optionally, the rim 22 includes a plurality of spaced apart slots 24.The optional slots 24 are configured to assist the base 12 in seatingagainst the various contours of the urinal bowl. The slots 24 can bespaced apart about the rim 22 with any desired spacing. In addition, theslots 24 can be spaced apart such as to achieve any desired grouping ofone or more slots 24. While the embodiment of the base 12 illustrated inFIG. 1A shows a quantity of six slots 24, it should be appreciated thatthe base 12 can have any desired quantity of slots 24 sufficient toassist the base 12 in seating against the various contours of a urinalbowl. While the embodiment of the screen assembly 10 illustrated inFIGS. 1A and 1B show the slots 24, it should be appreciated that theslots 24 are optional and the screen assembly 10 can be practicedwithout the slots 24.

Referring now to FIG. 1A, the slots 24 have a length L1 and a width W1.In the illustrated embodiment, the length L1 is in a range of from about0.375 inches to about 0.75 inches and the width W1 is in a range of fromabout 0.04 inches to about 0.09 inches. Alternatively, the length L1 canbe less than about 0.375 inches or more than about 0.75 inches and thewidth W1 can be less than about 0.04 inches or more than about 0.09inches.

In the embodiment illustrated in FIGS. 1A and 1B, the base 12 has agenerally triangular cross-sectional shape, with generally roundedcorners. Although in other embodiments, the screen assembly 10 can bepracticed with a base 12 having other cross-sectional shapes, such asfor example an ovular or circular cross-sectional shape and the cornersneed not be rounded.

The base 12 is configured for contact with the contours of a urinalbowl. Accordingly, the base 12 is made from materials that are flexible,bio-compatible and also compatible with the materials that form theurinal bowl, such as for example, porcelain-based materials or stainlesssteel. In the illustrated embodiment, the base 12 is made frompolymeric-based material, such as the non-limiting example ofpolypropylene. However, in other embodiments, the base 12 can be madefrom other desired polymeric materials or combinations of materials,sufficient to be flexible, bio-compatible and also compatible with thematerials that form the urinal bowl.

Referring again to FIG. 1A, the base 12 has a thickness T1. Thethickness T1 of the base 12 is configured to provide sufficient rigidityto the base such that the block 16 is positioned substantially above anycollections of urine that have not drained from the urinal bowl. In theillustrated embodiment, the thickness T1 is in a range of from about0.05 inches to about 0.20 inches. Alternatively, the thickness T1 of thebase 12 can be less than about 0.05 inches or more than about 0.20inches, sufficient to provide rigidity to the base 12 such that theblock 16 is positioned substantially above any collections of urine thathave not drained from the urinal bowl. While the thickness T1 of thebase 12 illustrated in FIG. 1A is shown to be constant throughout thebase 12, it should be appreciated that in other embodiments, thethickness T1 of portions of the base 12 can vary.

While the base 12 is illustrated in FIGS. 1A and 1B as a unitarystructure, in other embodiments, the base 12 can include layers ofvarious materials or the base 12 can be assembled from multiple discretecomponent structures.

Referring again to FIGS. 1A and 1B, the retention structure 14 extendsfrom the base 12 and is configured to retain the block 16 in a positionadjacent the base 12. In the illustrated embodiment, the retentionstructure 14 has the form of a collar, which includes an inner surface26 a and an outer surface 26 b. As will be explained in more detailbelow, the retention structure 14 can have other forms and shapessufficient to retain the block 16 in a position adjacent the base 12.The inner surface 26 a of the retention structure 14 defines an opening27. In the illustrated embodiment, the opening 27 has a circularcross-sectional shape that generally corresponds to a circularcross-sectional shape of the block 16. However, in other embodiments,the opening 27 can have other cross-sectional shapes sufficient togenerally correspond to the cross-sectional shape of the block 16.

As shown in the embodiment illustrated in FIGS. 1A and 1B, the retentionstructure 14 is formed as an integral extension of the base 12. However,as will be discussed in more detail below, in other embodiments, theretention structure 14 can be a distinct component or distinct assemblythat is subsequently assembled to the base 12.

Referring again to FIGS. 1A and 1B, the base 12 and the retentionstructure 14 include ingredients and/or chemicals, or combinationsthereof, configured to provide an effective deodorizing and cleaningagent for the urinal and urinal bowl. The ingredients and/or chemicalscan include one or more surfactants, biological non-pathogen spores orother ingredients, chemicals and/or agents having desiredcharacteristics, such as for example dyes, fragrances and/or malodorcounteractants. In certain embodiments, the base 12 and the retentionstructure 14 are configured such that the ingredients and/or chemicalshave an operating life in a range of from about 15 days to about 120days. In other embodiments, the base 12 and the retention structure 14can be configured such that the ingredients and/or chemicals have anoperating life less than about 15 days or more than about 120 days.

Referring again to FIGS. 1A and 1B, the block 16 is formed from acombination of ingredients and chemicals configured to provide aneffective deodorizing and cleaning agent for the urinal and urinal bowl.In certain embodiments, the block 16 can include a degradable basematerial, one or more surfactants and biological non-pathogen spores. Inother embodiments, the block 16 can include other ingredients, chemicalsand/or agents having desired characteristics. Optionally, the block 16can include dyes, fragrances and/or malodor counteractants. However, itshould be appreciated that the screen assembly 10 can be practicedwithout a block 16 having degradable base material, one or moresurfactants, biological non-pathogen spores, dyes, fragrances or malodorcounteractants. In certain embodiments, the block 16 is configured tohave an operating life in a range of from about 15 days to about 60days. In other embodiments, the block 16 can have an operating life lessthan about 15 days or more than about 60 days.

Referring again to FIG. 1, the block 16 has a diameter D2. The diameterD2 generally corresponds to a diameter of the opening 27. In theillustrated embodiment, the diameter D2 is in a range of from about 2.5inches to about 3.25 inches. Alternatively, the block 16 can have adiameter D2 less than about 2.5 inches or more than about 3.25 inchessufficient to generally correspond to the diameter of the opening 27.While the embodiment of the block 16 illustrated in FIGS. 1A and 1Bshows the block 16 as having a generally circular cross-sectional shape,it should be appreciated that in other embodiments the block 16 can haveother desired shapes, including the non-limiting example of a squarecross-sectional shape.

Referring now to FIG. 2, the screen assembly 10 is shown in an installedposition within a urinal bowl 30 of a urinal 32. The urinal bowl 30 hasa plurality of contours 34 that form a surface 36 of the urinal bowl 30.As discussed above, the screen assembly 10 seats against the pluralityof contours 34 of the surface 36 of the urinal bowl 30.

Referring again to FIGS. 1A and 1B, the screen assembly 10advantageously combines the deodorizing and cleaning agents containedwithin the block 16 with deodorizing and cleaning agents containedwithin the base 12 and the retention structure 14 into an effectivedeodorizing and cleaning structure. The screen assembly, having theunique combination of deodorizing and cleaning agents provided by thebase 12, the retention structure 14 and the block 16 allows anunexpected increase in the deodorizing and cleaning ability of thescreen assembly 10. Without being held to the theory, it is believedthat the combination of the deodorizing and cleaning agents containedwithin the block 16 and the deodorizing and cleaning agents containedwithin the base 12 and the retention structure 14 effectively combine toform a deodorizing and cleaning zone that extends radially past theouter rim of the block 16 to the rim 22 of the base 12. The deodorizingand cleaning zone is more effective than the areas affected solely by adeodorizing and cleaning block 16.

As discussed above, the retention structure 14 is configured to retainthe block 16 in a position adjacent the base 12. While the embodimentillustrated in FIGS. 1A, 1B and 2 shows the retention structure 14 ashaving the structure of a retention collar, it should be appreciatedthat in other embodiments the retention structure 14 can have otherforms or structures. Referring now to FIG. 3, a first example of analternate screen assembly 110, having a base 112 and retention structure114 is shown. In this embodiment, the retention structure 114 includes asupport collar 130 and a plurality of retention segments 132 extendingfrom the support segment 130.

Referring again to FIG. 3, the support collar 130 is configured toextend from the base 112 and further configured to connect with a firstend 138 a of the retention segments 132. The support collar 130 has adiameter D3 that is generally larger than a diameter D2 of the block116. In the illustrated embodiment, the diameter D3 is in a range offrom about 3.0 inches to about 3.5 inches. However, in otherembodiments, the diameter D3 can be less than about 3.0 inches or morethan about 3.5 inches, sufficient to be larger than the diameter D2 ofthe block 116.

As shown in the embodiment illustrated in FIG. 3, each of the retentionsegments 132 has a first component 140 a and a second component 140 b.The first component 140 a extends in a generally vertical direction fromthe base 112 to the second component 140 b. The second component 140 bextends a short distance from the first component 140 a in a radiallyinward horizontal direction. The retention segments 132 are configuredto have flexibility such as to allow minor radial movement about therespective first ends 138 a. In operation, the radial movement of theretention segments 132 allows the retention segments 132 to be separateda sufficient distance such as to allow the block 116 to be insertedbetween the separated retention segments 132 and into the interior ofthe retention structure 114. The block 116 is then positioned adjacentthe base 112. The block 116 is retained within the retention structure114 in a horizontal direction by the plurality of first components 140 aand in a vertical direction by the plurality of second components 140 b.

In a manner similar to the screen assembly 10 discussed above, the base112 and the retention structure 114 include the same ingredients and/orchemicals configured to provide an effective deodorizing and cleaningagent for the urinal and urinal bowl. However, it should be appreciatedthat the base 112 and the retention structure 114 can have differentingredients and/or chemicals than the screen assembly 10 discussedabove.

The retention structure 114 illustrated in FIG. 3 advantageously allowsa block 116 to be inserted into the retention structure 114 and furtherallows an expended block 116 to be easily removed from the screenassembly and a replacement block 116 to be easily installed.

While the embodiment illustrated in FIG. 3 shows the first component 140a as having a generally vertical orientation and the second component140 b as having a generally horizontal orientation, it should beappreciated that in other embodiments, the first and second components,140 a and 140 b, can have other desired orientations including angledorientations.

While the projections 132 illustrated in FIG. 3 are shown to have agenerally rectangular cross-sectional shape, alternatively in otherembodiments, the projections 132 can have other cross-sectional shapes,including the non-limiting example of circular cross-sectional shapes.

Referring again to FIG. 3, adjacent segments 132 form openings 142. Theopenings 142 are configured to allow an incoming stream of urine to passthrough the retention structure 114 and contact the block 116. Theopenings 142 can have any desired shape and size. While the embodimentshown in FIG. 3 shows openings 142 formed between each pair of adjacentsegments 132, it should be appreciated that in other embodiments, theopenings 142 can be formed between any desired adjacent segments 132 andneed not be formed between each pair of adjacent segments 132.

Referring now to FIGS. 4 and 5, a second example of an alternate screenassembly is shown generally at 210. The screen assembly 210 includes abase 212, a retention structure 214 and a block 216. In this embodiment,the screen assembly 210 is formed by assembling the retention structure214 to the base 212. The base 212 includes a plurality of apertures 220.

Referring now to FIG. 4, the base 212 and the block 216 are the same as,or similar to, the base 12 and the block 16 discussed above andillustrated in FIGS. 1A and 1B. However, in other embodiments, it shouldbe appreciated that the base 212 and the block 216 can be different thanthe base 12 and the block 16.

The retention structure 214 includes a lower rim 230, a plurality ofsegments 232, an upper rim 234 and a plurality of posts 236. In theillustrated embodiment, the retention structure 214 is formed such as tobe a single unitary structure. However, in other embodiments, theretention structure 214 can be formed from an assembly of discretecomponents.

The lower rim 230 is configured to seat against the base 212 and furtherconfigured to connect with a first end 238 a of each of the segments232. The lower rim 230 has a diameter D4 that is generally larger than adiameter D2 of the block 216. In the illustrated embodiment, thediameter D4 is in a range of from about 3.0 inches to about 3.5 inches.However, in other embodiments, the diameter D4 can be less than about3.0 inches or more than about 3.5 inches, sufficient to be larger thanthe diameter D2 of the block 216.

Referring again to FIG. 4, each of the segments 232 has a firstcomponent 240 a and a second component 240 b. In the illustratedembodiment, the first components 240 a are the same as the firstcomponents 140 a discussed above and shown in FIG. 3. However, in otherembodiments, the first components 240 a can be different from the firstcomponents 140 a. The second components 240 b extend from the firstcomponents 240 a in a generally horizontal direction and are connectedto the upper rim 234.

Referring again to FIG. 4, adjacent segments 232 form openings 242. Inthe illustrated embodiment, the openings 242 are the same as, or similarto, the openings 142 described above and illustrated in FIG. 3. However,in other embodiments, the openings 242 can be different from theopenings 142.

The posts 236 are connected to the lower rim 230. The posts 236 will bediscussed in more detail below.

As discussed above, the retention structure 214 is configured to retainthe block 216 in a position adjacent the base 212. Accordingly, theretention structure 214 is made from the same or similar materials asdescribed above for retention structure 114. In other embodiments,however, the retention structure 214 can be made from other desiredmaterials. Similarly, the retention structure 214 optionally can includethe same, or similar ingredients and/or chemicals as described above forretention structure 114. In other embodiments, however, optionally theretention structure 214 can include other desired ingredients and/orchemicals. However, it should be appreciated that the screen assembly210 can be practiced without the retention structure 214 having addedingredients and/or chemicals.

Referring now to FIGS. 4-6, the screen assembly 210 is assembled asdescribed in the following steps. First, a block 216 is positionedwithin the interior of the retention structure 214. Next, the base 212is positioned relative to the retention structure 214, such that theretention structure 214 is substantially proximate to the center of thebase 212 and the plurality of posts 236 extend through correspondingapertures 220 in the base 212. Lastly, the ends of the posts 236 areattached to the base 212 such as to retain the base 212, block 216 andthe retention structure 214 in an assembled configuration as shown inFIG. 5. In the embodiment illustrated in FIG. 5, the posts 236 areattached to the base 212 by ultrasonic welding. However, in otherembodiments, the posts 236 can be attached to the base 212 by othermethods, such as for example by adhesives. In still other embodiments,the posts 236 can be deformed by other processes such as thenon-limiting examples of processes incorporating heat, sufficient toretain the base 212, block 216 and retention structure 214 in anassembled configuration.

Referring now to FIG. 7, another embodiment of a screen assembly isshown generally at 310. In this embodiment, a support member is used toprovide rigidity and support to the screen assembly 310. The screenassembly 310 includes a base 312, a retention structure 314, a block 316and a support member 318. In the illustrated embodiment, the base 312,retention structure 314 and block 316 are the same as, or similar to,the base 212, retention structure 214 and block 216 discussed above andillustrated in FIGS. 4 and 5. However in other embodiments, the base312, retention structure 314 and block 316 can be different than thebase 212, retention structure 214 and block 216.

Referring again to FIG. 7, the support member 318 is configured toprovide rigidity and support to the screen assembly 310 as the screenassembly 310 is seated in a generally contoured orientation against thecontours of the urinal bowl. The support member 318 includes a pluralityof spaced apart spokes 344 extending radially from an intersection 345.While the embodiment illustrated in FIG. 7 shows a quantity of threespokes 344, it should be appreciated that in other embodiments, more orless than three spokes 344 can be used.

Referring again to FIG. 7, each of the spokes 344 includes an aperture346. The apertures 346 are configured to receive posts 336 extendingfrom a lower rim 330 of the retention structure 314. Each of the spokes344 further includes a segment 348 that extends beyond the apertures346. The apertures 346 and the segments 348 will be discussed in moredetail below.

The spokes 344 are connected to a rim 350. The rim 350 is configured toprovide rigidity and support to the screen assembly 310 as the screenassembly 310 is seated in a generally contoured orientation against thecontours of the urinal bowl. The rim 350 has a diameter D5. In theillustrated embodiment, the diameter D5 is in a range of from about 3.0inches to about 4.0 inches. In other embodiments, the diameter D5 can beless than about 3.0 inches or more than about 4.0 inches.

Referring now to FIGS. 8 and 9, the screen assembly 310 is shown in anassembled condition. In the assembled condition, the posts 336 extendthrough corresponding apertures 320 in the base 312 and through theapertures 346 in the spokes 344 of the support member 318. In thesepositions, the spokes 344, segments 348 and rim 350 cooperate to providerigidity and support to the base 312, thereby advantageously allowingthe screen assembly 310 to seat in a generally contoured orientationagainst the contours of the urinal bowl (not shown).

Referring again to FIG. 7, the spokes 344, segments 348 and the rim 350have a thickness T2. In the illustrated embodiment, the thickness T2 isin a range of from about 0.05 inches to about 0.20 inches.Alternatively, the thickness T2 can be less than about 0.05 inches ormore than about 0.20 inches. While the thickness T2 of the spokes 344,segments 348 and the rim 350 is shown to be constant, it should beappreciated that in other embodiments, the thickness T2 can vary.

While the spokes 344 are shown in the embodiment illustrated in FIG. 7to be of a generally straight and constant width along their lengths, itshould be appreciated that in other embodiments, the spokes 344 can haveother desired shapes, other desired lengths and also can haveinconsistent widths along their lengths.

As discussed above, the support member 318 is configured to providerigidity and support to the screen assembly 310 as the screen assembly310 is seated in a generally contoured orientation against the contoursof the urinal bowl. Accordingly, the support member 318 is made fromflexible, bio-compatible materials and materials that are alsocompatible with the materials that form the urinal bowl. In theillustrated embodiment the support member 318 is made frompolymeric-based materials, such as the non-limiting example ofpolypropylene. In other embodiments, the support member 318 can be madefrom other desired materials or combinations of materials sufficient tobe flexible, bio-compatible and provide rigidity and support to thescreen assembly 310. Optionally, the support member 318 can be infusedwith additives configured to provide deodorizing scents. However, itshould be appreciated that the screen assembly 310 can be practicedwithout scent additives infused in the support member 318.

Referring again to FIG. 7, the screen assembly 310 is assembled asdescribed in the following steps. First, a block 316 is positionedwithin the interior of the retention structure 314. Next, the base 312is positioned relative to the retention structure 314, such that theretention structure 314 is substantially proximate to the center of thebase 312 and the plurality of posts 336 extend through correspondingapertures 320 in the base 312. Next, the support member 318 ispositioned such that the posts 336 of the retention structure 314 extendthrough the apertures 346 in the spokes 344. Lastly, the ends of theposts 336 are attached to the support member 318 such as to retain thebase 312, block 316, retention structure 314 and the support member 318in an assembled configuration as shown in FIGS. 8 and 9. The posts 336can be attached to the support member 318 by any desired method,including by the methods discussed above.

Referring now to FIG. 10, the screen assembly 310 is shown in aninstalled position within a urinal bowl 360. In this position, theretention structure 314 is in an upright orientation relative to thebase 312. However, it should be appreciated that in other embodiments,such as the embodiment illustrated in FIG. 11, the screen assembly 310can be installed within a urinal bowl 360 in an inverted orientation,such that the retention structure (not shown) and base 312 are flipped,resulting in an upright orientation of the base 312 relative to theretention structure.

While the support member 318 illustrated in FIG. 7 has been describedabove as having the structure of spokes 344 oriented in a generallyY-shaped configuration, it should be appreciated that a support membercan have other desired shapes and configurations sufficient to providerigidity and support to the screen assembly. One non-limiting example ofan alternate structure of a support member is illustrated in FIG. 12generally at 418.

Referring now to FIG. 12, the support member 418 includes a plurality ofspokes 444 extending radially from an intersection 445. The spokes 444include apertures 446 and segments 448. In the illustrated embodiment,the spokes, apertures 446 and segments 448 are the same as, or similarto, the spokes 344, apertures 346 and segments 348 illustrated in FIG. 7and described above. In other embodiments, the spokes 344, apertures 446and segments 448 can be different than the spokes, 344, apertures 346and segments 348. Adjacent segments 448 are connected together byconnectors 460 a-460 f. The connectors 460 a-460 f are configured toprovide rigidity and support to the screen assembly as the screenassembly is seated in a generally contoured orientation against thecontours of the urinal bowl. In the embodiment illustrated in FIG. 12,the support member 418 is formed such as to be a unitary structure.However, in other embodiments, the support segment 418 can be formedsuch as to be an assembly of discrete components.

While the embodiments of the support members 318 and 418 illustrated inFIGS. 7 and 12 are described above as having a plurality of spokes, rimsand connectors, it should be appreciated that in other embodiments, thesupport members can have any desired shape, structure and combination ofcomponents.

In the embodiments illustrated in FIGS. 7 and 12, the support members318 and 418 are illustrated and described above as being discretecomponents that are later assembled to the base and retention structure.It is within the contemplation of this invention that in otherembodiments, the base can be formed such as to incorporate supportstructures, thereby allowing the base and the support structures to be asingle, unitary structure. The single, unitary structure forming thebase and the support structures can have any desired shape, form andsize. Referring now to FIGS. 13 and 14, two non-limiting examples ofthese embodiments are illustrated.

Referring now to FIG. 13, a first example of a base formed toincorporate a support structure 518 is shown generally at 512. In thisembodiment, the base 512 has been formed to further incorporate aretention structure 514, thereby providing a single, unitary structurefor the base 512, retention structure 514 and the support member 518. Inthe illustrated embodiment, the retention structure 514 is the same as,or similar to, the retention structure 14 described above andillustrated in FIGS. 1A and 1B. In other embodiments, the retentionstructure 514 can be different from the retention structure 14. Thesupport structure 518 includes radially-oriented spokes 544 and acircumferential rim 550. In the illustrated embodiment, the spokes 544and the rim 550 are the same as, or similar to, the spokes 344 and therim 350 discussed above and shown in FIG. 7. However, in otherembodiments, the spokes 544 and the rim 550 can be different than thespokes 344 and the rim 350.

Referring again to FIG. 13, the incorporated support member 518 can be adifferent material or materials than the materials used for the base512. However, it should be appreciated that the support member 518 canbe molded at the same time as the base 512 and can use the samematerials as the base 512.

Referring now to FIG. 14, a second example of a base incorporating asupport structure is shown generally at 612. The base 612 includes aretention structure 614 and a support structure 618. In this embodiment,the retention structure 614 and the support structure 618 are formed asportions of the base 618, thereby providing a single, unitary structure.In the illustrated embodiment, the retention structure 614 is the sameas, or similar to, the retention structure 114 described above andillustrated in FIG. 3. In other embodiments, the retention structure 614can be different from the retention structure 114. The support structure618 includes radially-oriented spokes 644 and a circumferential rim 650.In the illustrated embodiment, the spokes 644 and the rim 650 are thesame as, or similar to, the spokes 344 and the rim 350 discussed aboveand shown in FIG. 7. However, in other embodiments, the spokes 644 andthe rim 650 can be different than the spokes 344 and the rim 350.

Referring again to FIG. 6, the assembly of the screen assembly 210 hasbeen described above as involving a process of attaching the posts 236to the base 212 such as to retain the base 212, retention structure 214and block 216 in an assembled configuration. However, in otherembodiments, a screen assembly can be assembled in other manners.Referring now to FIG. 15, one non-limiting example of an alternate post736 is illustrated. In this embodiment, the post 736 is configured as asnap-connector, with resilient walls 752 and annular retention boss 754.In operation, the base 712, retention structure 714, block 716, andsupport member 718 are brought together as described above. However, theplurality of posts 736 are simply snapped through the correspondingapertures 720 in the base 712 and the apertures 746 in the supportmember 718, with the annular retention boss 754 retaining the base 712,retention structure 714, block 716 and support member 718 in anassembled configuration. While the example of the alternate post 736illustrated in FIG. 15 shows a snap connector, it should be appreciatedthat in other embodiments, the post can be other structures sufficientto retaining the base 712, retention structure 714, block 716 andsupport member 718 in an assembled configuration.

Referring now to FIG. 16, another embodiment of a screen assembly isshown at 810. In this embodiment, additional structures are positionedon the surface of a base, such that the additional structures canprovide splash resistance to a stream of incoming urine. The screenassembly 810 includes a base 812, a retention structure 814, a block 816and a support member (not shown). In the illustrated embodiment, theretention structure 814, block 816 and support member are the same as,or similar to the retention structure 214, block 216 and support member218 illustrated in FIG. 5 and described above. However, in otherembodiments, the retention structure 814, block 816 and support membercan be different from the retention structure 214, block 216 and supportmember 218.

Referring again to FIG. 16, the base 812 includes a plurality ofprojections 862 extending from an upper surface 864 of the base 812. Theprojections 862 are configured to provide splash resistance to a streamof incoming urine (not shown). In the illustrated embodiment, theprojections 862 have the general shape of blades of grass and extend ina substantially vertical direction from the upper surface 864 of thebase 812. However, in other embodiments, the projections 862 can haveother desired shapes and can extend from the base 812 in any desireddirection sufficient to provide splash resistance to a stream ofincoming urine. While the illustrated embodiment shows the projectionsas being formed as a portion of the base 812, it should be appreciatedthat in other embodiments, the projections 862 can be discretecomponents that are attached to the base 812.

Referring again to embodiment illustrated in FIG. 4, the retentionstructure 214 has been described above as having segments 232 connectedto the lower rim 230 and the upper rim 234, with openings 242 formedbetween adjacent segments 232. In other embodiments, the retentionstructure can have other structures and can be configured for otherfunctions. One non-limiting example of an alternate retention structureis illustrated in FIG. 17 at 914. The retention structure 914 isconfigured to retain a block 916 in a position adjacent the base (notshown). In this embodiment, the retention structure 914 includes a top970 and a circumferential side wall 972. The top 970 and the side wall972 include a plurality of apertures 974. The apertures 974 areconfigured to allow an incoming stream of urine to pass through theretention structure 914 and contact the block 916. While the illustratedembodiment shows the apertures 974 are having a circular cross-sectionalshape, it should be appreciated that in other embodiments, the apertures974 can have other desired shapes, such as for example rectangularcross-sectional shapes.

Another embodiment of a screen assembly is illustrated in FIG. 18generally at 1010. In this embodiment, a retention structure 1014 can beconfigured to include a slit 1080 positioned in the first components1040 a of the retention structure 1014. The slit 1080 is configured tohave both a closed position, as shown in FIG. 18, and an open position,as shown in the phantom lines of FIG. 18. In a closed position, theretention structure 1014 is configured to retain the block (not shown)as described above. In an open position, the slit 1080 advantageouslyprovides for several opportunities. First, in certain scenarios, theslit 1080 provides a space sufficient for insertion of the block intothe retention structure 1014 after the assembly of the screen assemblyis completed, thereby facilitating an effective assembly process.Second, in other scenarios, the slit 1080 allows either the removal ofthe existing block or the insertion of a new block into an assembledscreen assembly, thereby providing an effective reloading process.Activation of the slit 1080 from a closed position to an open positioncan be any desired method, including the non-limiting example ofsqueezing the sides of the retention structure 1014.

While the slit 1080 is illustrated in FIG. 18 as being positioned in theside of the retention structure 1080, it should be appreciated that inother embodiments, the slit 1080 could be positioned in the top of theretention structure 1014. Further, it is within the contemplation ofthis invention that the slit 1080 can have any desired shape and size.

The principle and mode of operation of the improved urinal screenassembly have been described in certain embodiments. However, it shouldbe noted that the improved urinal screen assembly may be practicedotherwise than as specifically illustrated and described withoutdeparting from its scope.

1. A urinal screen assembly comprising: a base having opposing majorsurfaces, a plurality of apertures extending therebetween and a rim, thebase configured to seat in a contoured orientation against contours on asurface of a urinal bowl, wherein the base includes one or moredeodorizing and cleaning agents; a retention structure extending fromone of the major surfaces of the base; and a block positioned within theretention structure, wherein the block includes one or more deodorizingand cleaning agents configured to deodorize and clean the urinal bowl;wherein the deodorizing and cleaning agents in the base and thedeodorizing and cleaning agents in the block are configured to combineto form a deodorizing and cleaning zone that extends radially beyond theedges of the block.
 2. The urinal screen assembly of claim 1, whereinthe retention structure is formed integral to the base.
 3. The urinalscreen assembly of claim 1, wherein the retention structure has theshape of a collar.
 4. The urinal screen assembly of claim 1, wherein theretention structure is a discrete component and configured for assemblyto the base.
 5. The urinal screen assembly of claim 1, wherein theretention structure has a lower rim and a plurality of spaced apartretention segments extending from the lower rim, and wherein adjacentsegments are configured to form an opening.
 6. The urinal screenassembly of claim 1, wherein the retention structure includes aplurality of spaced apart posts.
 7. The urinal screen assembly of claim1, wherein the posts are configured for attachment to the base.
 8. Theurinal screen assembly of claim 1, wherein a support member ispositioned adjacent to the base and is configured to support the base.9. The urinal screen assembly of claim 8, wherein the support memberincludes a plurality of radially extending spokes.
 10. The urinal screenassembly of claim 9, wherein adjacent spaced apart spokes are connectedto each other by a rim.
 11. The urinal screen assembly of claim 1,wherein a support structure is formed such as to be integral to thebase.
 12. The urinal screen assembly of claim 11, wherein the retentionstructure includes a plurality of spaced apart posts configured forinsertion through the base and through the support structure.
 13. Theurinal screen assembly of claim 6, wherein the posts extending from theretention structure have the structure of snap connectors.
 14. Theurinal screen assembly of claim 1, wherein the base includes a pluralityof projections configured to provide splash resistance to a stream ofincoming urine.
 15. The urinal screen assembly of claim 1, wherein theretention structure has a top and a circumferential side wall, andwherein the top and the circumferential side wall each include aplurality of apertures configured to allow an incoming stream of urineto pass through the retention structure and contact the block.
 16. Theurinal screen assembly of claim 1, wherein the retention structureincludes a slit configured for both an open position and a closedposition, wherein in an open position, the slit is configured forinsertion of a block into the retention structure and in a closedposition, the slit is configured to retain the block within theretention structure.
 17. A method of assembling a urinal screenassembly, the method comprising the steps of: providing a base havingopposing major surfaces, a plurality of apertures extending therebetweenand a rim, the base configured to seat in a contoured orientationagainst contours on a surface of a urinal bowl, wherein the baseincludes one or more deodorizing and cleaning agents; extending aretention structure from one of the major surfaces of the base; andpositioning a block within the retention structure, wherein the blockincludes one or more deodorizing and cleaning agents configured todeodorize and clean the urinal bowl; wherein the deodorizing andcleaning agents in the base and the deodorizing and cleaning agents inthe block are configured to combine to form a deodorizing and cleaningzone that extends radially beyond the edges of the block.
 18. The methodof claim 17, including the step of attaching the retention structure tothe base by ultrasonic welding.
 19. A urinal comprising: a urinal bowlconfigured to receive an incoming stream of urine, the urinal bowlhaving a plurality of contours; and a urinal screen assembly positionedwithin the urinal bowl, the urinal screen assembly configured to seat ina contoured orientation against the plurality of contours of the urinalbowl, the urinal screen assembly having: a base having opposing majorsurfaces, a plurality of apertures extending therebetween and a rim, thebase having one or more deodorizing and cleaning agents; a retentionstructure extending from one of the major surfaces of the base; and ablock positioned within the retention structure, wherein the blockincludes one or more deodorizing and cleaning agents configured todeodorize and clean the urinal bowl; wherein the deodorizing andcleaning agents in the base and the deodorizing and cleaning agents inthe block are configured to combine to form a deodorizing and cleaningzone that extends radially beyond the edges of the block.
 20. (canceled)21. A screen assembly comprising: a base having opposing major surfaces,a plurality of apertures extending therebetween and a rim, wherein thebase includes one or more deodorizing and cleaning agents; a retentionstructure extending from one of the major surfaces of the base; and ablock positioned within the retention structure, wherein the blockincludes one or more deodorizing and cleaning agents; wherein thedeodorizing and cleaning agents in the base and the deodorizing andcleaning agents in the block are configured to combine to form adeodorizing and cleaning zone that extends radially beyond the edges ofthe block.